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Finding the Fourth Proportional to 78,760.08, 108,627.48 and 50,468.40

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Solution

The fourth proportional to 78,760.08, 108,627.48 and 50,468.40 is: 69,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,760.08 : 108,627.48 = 50,468.40 : x
  2. Step 2: Convert to fraction form
    78,760.08/108,627.48 = 50,468.40/x
  3. Step 3: Cross multiply
    78,760.08x = 108,627.48 × 50,468.40
  4. Step 4: Simplify right side
    78,760.08x = 5,482,255,111.63
  5. Step 5: Solve for x
    x = 5,482,255,111.63/78,760.08
  6. Step 6: Final answer
    x = 69,607.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.